US1840240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery support and connection
Assignee: Individual
•
Filing: 1929-07-27
•
Granted: 1932-01-05
•
Expires: 1949-07-27
Abstract
No abstract record available.
Inventors
- 👤 Hercel J Ludewig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:38
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/20; H01M50/244; H01M50/202; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-01-04 | 1935-07-06 | 1936-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-04 | 1939-07-06 | 1940-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-04 | 1943-07-06 | 1944-01-05 | $7700.00 | Window Closed / Lapsed |